Suppose a body of mass m and specific heat capacity s is at temperature T2. Let T1 be the temperature of the surroundings. If the temperature falls by a small amount d T2 in time d t, then the amount of heat lost is

Question

Suppose a body of mass m and specific heat capacity s is at temperature T2. Let T1 be the temperature of the surroundings. If the temperature falls by a small amount d T2 in time d t, then the amount of heat lost is (A) d Q=-4 m s d T2 (B) d Q=2 m s d T2 (C) d Q=m s d T2 (D) d Q=-2 m s d T2

Tardigrade Admin · Accepted Answer

Correct answer is (c) d Q=m s d T2

Q. Suppose a body of mass $m$ and specific heat capacity $s$ is at temperature $T_{2}$ . Let $T_{1}$ be the temperature of the surroundings. If the temperature falls by a small amount $d T_{2}$ in time $d t$ , then the amount of heat lost is

$d Q = - 4 m s d T_{2}$

$d Q = 2 m s d T_{2}$

$d Q = m s d T_{2}$

$d Q = - 2 m s d T_{2}$

Correct answer is (c) $d Q = m s d T_{2}$

Q. Suppose a body of mass m and specific heat capacity s is at temperature T2​. Let T1​ be the temperature of the surroundings. If the temperature falls by a small amount dT2​ in time dt, then the amount of heat lost is

dQ=−4msdT2​

dQ=2msdT2​

dQ=msdT2​

dQ=−2msdT2​