147

You visited us 147 times! Enjoying our articles? Unlock Full Access!

Latent Heat of Fusion

20g of ice at...

Question

20g of ice at -40°C is in a vessel of water equivalent 15g .Find the energy required to raise the temperature to +30°C

Open in App

Solution

Dear Student ,
Here in this case ,
$W = m s \Rightarrow 15 = 20 \times s \Rightarrow s = \frac{15}{20} = 0 \cdot 75 c a l / g m ° C N o w a m o u n t o f h e a t r e q u i r e d t o r a i s e t h e t e m p e r a t u r e - 40 ° C t o + 30 ° C i s, Q = m s ∆ t = 20 \times 0 \cdot 75 \times 70 = 1050 c a l$
Regards

Suggest Corrections

Similar questions

100 g

0^{\circ} C

0^{\circ} C

2

0^{\circ} C

20^{\circ} C

= 4.2 J g^{- 1}^{\circ} C^{- 1}

= 336 J g^{- 1}]

1 g

0^{o}

1 g

0^{o}

10^{o}

20 g

30^{\circ} C

= 1 {cal/g}^{\circ} C

Join BYJU'S Learning Program