Heat energy can be calculated by using the specific heat of a substance multiplying it to the mass of the sample and the change in temperature. It is expressed as:
<span>
Energy = mCΔT
</span><span>Energy = 132 (0.385) (45 - 32.2)
</span><span>Energy = 650.50 J</span>
C hope this helps. Please say thank you if u can
Answer:
the temperature of the system decreases
Answer:
ΔT = 98.84 °C
Explanation:
Given data:
Heat absorbed = 255 J
Mass of gold = 20.0 g
Specific heat capacity of gold = 0.129 J/g.°C
Temperature change = ?
Solution:
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
by putting values,
255 J = 20.0 g × 0.129 J/g.°C × ΔT
255 J = 2.58 J / °C × ΔT
ΔT = 255 J / 2.58 J / °C
ΔT = 98.84 °C
Answer:
The addition or subtraction of an electron and change ions to have a positive or negative charge. So, if and ion with an equal amount of protons and electrons gains an electron, it becomes negatively charged.
Explanation:
