The element hydrogen has the highest specific heat of all elements. At a temperature of 25°C, hydrogen’s specific heat capacity is 14300J/(k

Question

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?

in progress 0
Thành Đạt 4 years 2021-08-22T06:04:08+00:00 1 Answers 40 views 0

Answers ( )

  1. thachthao
    0
    2021-08-22T06:05:21+00:00
    Reply

    Answer:

    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

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )