High School

Silver pellets with a mass of 1.1 g and a temperature of 90 degrees Celsius are added to 210 g of water at 17 degrees Celsius. How many pellets must be added to increase the equilibrium temperature of the water to 40 degrees Celsius? (Assume no heat loss to the surroundings)

A. 95 pellets
B. 110 pellets
C. 125 pellets
D. 140 pellets

Answer :

Final answer:

To increase the water temperature, calculate the specific heat capacities and temperatures for the pellets and water in thermal equilibrium, determining that 95 pellets are needed. so the correct option is a) 95 pellets

Explanation:

The number of silver pellets needed to increase the equilibrium temperature of water to 40 degrees Celsius can be calculated using the principles of thermal equilibrium.

The specific heat capacities and temperatures of both the pellets and the water must be considered in this calculation.

By applying the equation for thermal equilibrium, the correct answer can be determined to be 95 pellets.

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