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A 38 kg block of lead is heated from 26 degrees Celsius to 180 degrees Celsius how much heat energy does the block of lead absorb to increase its temperature this much?
Wiki User
∙ 14y ago
The specific heat of lead is 0.0305 K cal/kg deg C. The heat absorbed will be 38x(180-26)x0.0305 = 178.5 Kcal = 746.1 K joules
Wiki User
∙ 14y ago
The specific heat capacity of lead is 0.128 J/g°C. First, calculate the mass in grams (38 kg = 38000 g). Then, use the formula Q = mc∆T, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ∆T is the change in temperature. Plug in the values to find the heat energy absorbed.
Wiki User
∙ 14y ago1,017,640
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If 200g ice cube with an initial temperature of -12 degrees celsius is placed in 1 kg of warm water with an initial temperature of 40 degrees celsius If you ignore any heat losses to the environment?
The ice will absorb heat from the warm water and increase in temperature until it reaches 0 degrees Celsius. The heat lost by the warm water is equal to the heat gained by the ice. Use the equation: (Q = mcΔT) where Q is heat energy, m is mass, c is specific heat capacity, and ΔT is temperature change to calculate the final temperature of the system.
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What is the temperature for a black shirt in room temperature?
A black shirt in room temperature will generally reach the same temperature as its surroundings, which is typically around 68-72 degrees Fahrenheit (20-22 degrees Celsius). The black color of the shirt will absorb more heat from the environment compared to lighter colors, so it may feel slightly warmer to the touch.
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