Question

A gas sample absorbs 53KJ of heat and does 18 KJ of work. Calculate the change in its internal energy

Answer 1

delta E = q+w

Answer 2

71

Answer 3

[AI-generated answer — Explain Bot]

To calculate the change in internal energy, we can use the first law of thermodynamics, which states that the change in internal energy (ΔU) is equal to the heat absorbed (Q) minus the work done (W):

ΔU = Q - W

Given that the gas sample absorbs 53 KJ of heat (Q = 53 KJ) and does 18 KJ of work (W = 18 KJ), we can substitute these values into the equation:

ΔU = 53 KJ - 18 KJ

Now, we can simply subtract the two values:

ΔU = 35 KJ

Therefore, the change in internal energy for the gas sample is 35 KJ.