During the melting of a slab of ice at 273 K | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) When ice melts into water at $273 \ K$,the density of water is greater than that of ice,which means the volume of the system decreases $(V_{final}

Vedclass · Accepted Answer

Positive work is done on the ice-water system by the atmosphere.

Vedclass · Answer

(D) When ice melts into water at $273 \ K$,the density of water is greater than that of ice,which means the volume of the system decreases $(V_{final} Since work done by the system is given by $W = P \Delta V$,and $\Delta V$ is negative,the work done by the system is negative. This implies that positive work is done on the ice-water system by the atmosphere.According to the first law of thermodynamics,$\Delta U = \Delta Q + \Delta W$.Since the system absorbs heat during melting,$\Delta Q$ is positive.Because the volume decreases,the work done on the system is positive,meaning $\Delta W$ (work done on the system) is positive.Therefore,$\Delta U = \Delta Q + \Delta W$ results in a positive value,indicating that the internal energy of the ice-water system increases.

During the melting of a slab of ice at $273 \ K$ at atmospheric pressure,

Similar Questions

$A$ gas is compressed at a constant pressure of $50 \ N/m^{2}$ from a volume of $10 \ m^{3}$ to $4 \ m^{3}$. Then,the gas is heated by supplying $100 \ J$ of energy. The increase in its internal energy will be ..... $J$.

Write the sign convention for internal energy in thermodynamics.

The first law of thermodynamics confirms the law of . . . . . . .

The first law of thermodynamics states that:

Why does a gas get heated on compression?

Vedclass Test Series

Exam Paper Generator

Online Exam Module