The element hydrogen has the highest specific heat of all elements. At a temperature of 25°C, hydrogen's specific heat capacity is 14300J / (kg K). If the temperature of a. 34kg sample of hydrogen is to be raised by 25 K, how much heat will have to be transferred to the hydrogen?

Question

Physics

Watson

23 October, 01:12

The element hydrogen has the highest specific heat of all elements. At a temperature of 25°C, hydrogen's specific heat capacity is 14300J / (kg K). If the temperature of a. 34kg sample of hydrogen is to be raised by 25 K, how much heat will have to be transferred to the hydrogen?

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Answers (1)

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Lilly · Answer 1

121550 J

Explanation:

Parameters given:

Mass, m = 0.34kg

Specific heat capacity, c = 14300 J/kgK

Change in temperature, ΔT = 25K

Heat gained/lost by an object is given as:

Q = mcΔT

Since ΔT is positive in this case and also because we're told that heat was transferred to the hydrogen sample, the hydrogen sample gained heat. Therefore, Q:

Q = 0.34 * 14300 * 25

Q = 121550J or 121.55 kJ