A pure aluminium block with a mass of is heated so that its temperature increases from to

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

Problem

A pure aluminium block with a mass of

10\,\text{g}

is heated so that its temperature increases from

20^\circ\text{C}

50^\circ\text{C}

. The specific heat capacity of aluminium is

8.99\times10^{-1}\,\text{J g}^{-1}\text{K}^{-1}

. Which expression gives the heat energy change in

\text{kJ}

? (1)

10\times8.99\times10^{-1}\times303

(2)

10\times8.99\times10^{-1}\times30

(3)

\frac{10\times8.99\times10^{-1}\times303}{1000}

(4)

\frac{10\times8.99\times10^{-1}\times30}{1000}