Answer:
- 3706.5 J.
Explanation:
The heat lost by the copper can be calculated using the formula:
Q = m.C.ΔT, where,
Q is the amount of heat lost by the mercury,
m is the mass of the copper <em>(m = 75.0 g)</em>,
C is the specific heat of Hg <em>(C = 0.140 J/g.°C)</em>,
ΔT is the temperature difference (the final temperature - the initial temperature<em> (ΔT = (297 K - 273) °C - (650 K - 273) °C = - 353 °C)</em>.
∴ The amount of heat lost by the mercury Q = m.C.ΔT = (75.0 g) (0.140 J/g.°C) (- 353 °C) = - 3706.5 J.
Answer:
macro-evolution
Explanation:
This happens when evolution occurs because of separation of a population.
Answer:
Temperature will revert to room temperature after the substance reacts fully. Heat energy flows between the chemical bonds of the added substance and water to the surroundings (elsewhere in the water, the beaker, a student's hand that touches the beaker).
Explanation:
The question is incomplete, here is the complete question:
A student sets up the following equation to convert a measurement. (The stands for a number the student is going to calculate.) Fill in the missing part of this equation.
<u>Answer:</u> The measurement after converting is
<u>Explanation:</u>
We are given:
A quantity having value
To convert this into , we need to use the conversion factors:
1 kPa = 1000 Pa
Converting the quantity into , we get:
Hence, the measurement after converting is