SATHEE: Properties Of Solids And Liquids Question 432

Properties Of Solids And Liquids Question 432

Question: A student takes 50gm wax (specific heat = 0.6 $k c a l / k g^{\circ} C$ ) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively

Options:

A) $500 c a l, 50^{\circ} C$

B) $1000 c a l, 100^{\circ} C$

C) $1500 c a l, 200^{\circ} C$

D) $1000 c a l, 200^{\circ} C$

Show Answer

Answer:

Correct Answer: C

Solution:

[c] Since specific heat $= 0.6 k c a l / g x^{\circ} C = 0.6$

$c a l / g x^{\circ} C$ From graph it is clear that in a minute, the temperature is raised from $0^{\circ} C$ to $50^{\circ} C$ . $\Rightarrow$ Heat required for a minute $= 50 \times 0.6 \times 50$ =1500 cal. Also from graph. Boiling point of wax is $200^{\circ} C$ .

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Properties Of Solids And Liquids Question 432

Question: A student takes 50gm wax (specific heat = 0.6kcal/kg∘C ) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively

Options:

Answer:

Solution:

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Question: A student takes 50gm wax (specific heat = 0.6 $k c a l / k g^{\circ} C$ ) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively