What Is This Tool?
This tool converts power measurements from calorie (thermochemical) per second, a unit used in thermal energy contexts, into centijoule per second, a smaller unit suitable for low-power and precise scientific applications.
How to Use This Tool?
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Enter the value in calorie (th)/second you want to convert
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Select the 'calorie (th)/second' as the input unit
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Choose 'centijoule/second [cJ/s]' as the output unit
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Click convert to see the equivalent value expressed in centijoule per second
Key Features
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Converts between calorie (th)/second and centijoule/second units of power
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Uses the defined relationship: 1 cal(th)/s equals 418.4 cJ/s
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Supports applications in laboratory calorimetry, thermal system evaluations, and micro-power device analysis
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Browser-based and easy to use with clear multiplication formula
Examples
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2 cal(th)/s equals 836.8 cJ/s (2 × 418.4)
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0.5 cal(th)/s equals 209.2 cJ/s (0.5 × 418.4)
Common Use Cases
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Reporting heat flow in laboratory calorimetry experiments
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Specifying power in older engineering texts using calories instead of watts
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Translating legacy thermal power data into SI units for HVAC and process engineering
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Measuring low-power draw of sensors, IoT devices, and wearable electronics
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Evaluating small output powers from photodiodes, LEDs, and laboratory components
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Characterizing harvested power from experimental micro-energy harvesters
Tips & Best Practices
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Verify that the calorie unit used is the thermochemical calorie before converting
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Carefully handle large numeric values resulting from conversion to maintain calculation accuracy
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Use this conversion to integrate legacy data into modern SI-based systems for compatibility
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Apply the conversion in relevant scientific and engineering contexts involving small power levels
Limitations
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The calorie (th)/second unit is specifically based on the thermochemical calorie, which differs from other calorie definitions and may affect interpretation
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Centijoule/second is a very small power unit; converted values can be large and require precise numeric handling
Frequently Asked Questions
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What does 1 calorie (th)/second represent in terms of power?
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It is the power corresponding to transferring one thermochemical calorie of energy per second, equal to 4.184 watts.
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Why convert calorie (th)/second to centijoule/second?
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To translate older thermal power units into finer, SI-aligned units suitable for measuring very small power levels in modern scientific and engineering applications.
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Are all calories the same when converting power units?
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No, this conversion uses the thermochemical calorie definition, which is fixed; other calorie variants may differ.
Key Terminology
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Calorie (th)/second
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A power unit equal to one thermochemical calorie transferred per second, where 1 cal(th)/s is exactly 4.184 watts.
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Centijoule/second [cJ/s]
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A unit of power equal to one hundredth of a joule per second, representing very small steady power levels.
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Thermochemical calorie
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A calorie variant defined as exactly 4.184 joules, used in defining calorie (th)/second.