Water at is kept in a room maintained at

PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

Water at

90^{\circ}\text{C}

is kept in a room maintained at

25^{\circ}\text{C}

. If the cooling constant is

k=0.04\,\text{min}^{-1}

, find the temperature (in

^{\circ}\text{C}

) of the water after

10

minutes. (a)

60.0

(b)

46.4

(c)

68.6

(d)

25.0