The heat energy required to raise the temperature of 20 kg of water from 25° C to 75° C.
A) 103 cal
B) 104 cal
C) 105 cal
D) 106 cal
1 Answers
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How much heat is required to raise temperature of 750 g of copper pot from 20 to 50 °C?
Given: s = 0.094 kcal/kg°C, m = 750 g = 0.750kg, T1 = 20°C and T2 = 50°C Rise in temperature, ∆T = T2 – T1 = 50 – 20 = 30°C To find: Heat required (Q) Formula: Q =...
2 Answers 3 views
The amount bf heat requited to raise the temperature of the unit mass of the substance by one unit is called ………………….
D) specific heat
2 Answers 1 views
Which of the following equation is used to determine howmuch heat is needed to raise the temperature of a certain
C) Q = mS Δt
2 Answers 1 views
Statement I : The amount of heat required to raise the temperature of unit mass of substance
Correct option is A) Both are true
2 Answers 1 views
The amount of heat required to raise the temperature of 1 gm of water to 1°C is ………….. (in Jouls)
Correct option is A) 4.186
2 Answers 1 views
The final temperature of a mixture of 100g of water at 30°C temperature and 100g of water at 60°C temperature is ………………………
Correct option is A) 45° C
2 Answers 2 views
1 gm of water at 20°C is heated till its temperature raises to 21 °C. The amount of heat energy absorbed by the water is ………………..
Correct option is B) 1 calorie
2 Answers 1 views
1 kg of water at 300 K is heated till its temperature raises to 301K. The amount of heat energy absorbed by the water is …………………..
Correct option is C) c,d
2 Answers 1 views
The heat energy required to raise the temperature of 20 kg of water from 25 °C to 75 °C is (in calories) …………………
Correct option is D) 106
2 Answers 1 views
__________ amount of heat is required to raise the temperature of 100 g of kerosene from 10 °C to 30 °C
Correct option is: (B) 1.02 kcal
2 Answers 1 views