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After a week, biochemical reactions in compost slow, and the temperature drops to 45 °C. The dark brown organic-rich mixture is ready for use in the garden. What is this temperature in degrees Fahrenheit? In kelvins? (3.3)
1. Matter and Measurements
Temperature (Simplified)
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Which of the following containers would have the greatest flow of thermal energy in the form of heat?
A
B
C
Verified step by step guidance1
Identify the key concept: The flow of thermal energy in the form of heat is related to the amount of substance and its temperature. In this case, all containers have water at the same temperature (50°C), so the amount of water will determine the heat flow.
Recall the formula for heat flow: The heat flow (q) can be calculated using the formula q = m * c * ΔT, where m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. Since ΔT is the same for all containers, the mass of water will be the deciding factor.
Compare the masses of water in each container: The first container has 40 g of water, the second container has 120 g of water, and the third container has 30 g of water.
Determine which container has the greatest mass: The second container has the greatest mass of water (120 g), which means it will have the greatest flow of thermal energy in the form of heat.
Conclude that the container with the greatest mass of water will have the greatest heat flow, given the same temperature change.
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