waec model questions vol1 2019 physics
Objective • Question 11
Question 11
WAEC_MODEL_QUESTIONS_VOL1
•
2019
A 150 g block of an unknown metal is heated to 100 °C and then quickly placed into 200 g of water at 20 °C. The final equilibrium temperature of the system is 30 °C. Given that the specific heat capacity of water is 4.18 J g⁻¹ °C⁻¹, determine the specific heat capacity of the metal in J g⁻¹ °C⁻¹.
Answer Options
A.
0.65
Correct Answer
B.
0.80
C.
1.20
D.
0.40
Correct Answer
B
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