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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Physics

3 December, 10:47

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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Sariah Bernard · 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