A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50-L container of cold water, what would be the approximate increase in the temperature of the water? (Note: A liter of cold water weighs about 1 kg.)
a.50°C c.100°C
b. 5°C d.10°C

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podgorica podgorica · Answer 1 · 2019-09-15T07:51:13+02:00

Answer:

Option D, There will be an increase of [tex]10[/tex] degree Celsius in the temperature of the water

Explanation:

As we know -

[tex]Q = m*C* dT\\[/tex]

Where Q is the total amount of heat produced

m signifies mass of any substance

C signifies specific heat

and dT represents change in temperature

Specific heat of water is 1 calories per gram per degree Celsius

On substituting the given values in above equation, we get -

[tex]500* 1000 = 50000 * 1* dT\\dT = \frac{500000}{50000} \\dT = 10[/tex]

Hence , there will be an increase of approximately[tex]10[/tex] degree Celsius in the temperature of the water