Answer:
In full volume it contain 0.12 moles.
Explanation:
Given data:
Total volume= Vt = 2.9 L
Decreased volume= Vd = 1.2 L
Number of moles of air present in decreased volume= n = 0.049 mol
Number of moles of air in total volume= n = ?
Solution:
Formula:
Vt/ Vd = n (in total volume) /n ( decreased volume)
2.9 L / 1.2 L = X / 0.049 mol
2.42 = X / 0.049 mol
X = 2.42 × 0.049
X = 0.12 mol
Answer:
Pressure = 1820 mmHg ... T = ( 2.39atm x 5.12L ) / ( 0.4041 moles x 0.08206atm. ... n is moles, R is the gas constant, and T is temperature in Kelvins.
Explanation:
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B. Duncan’s conviction was overturned
Dang hard
Can you mark me Brainlyist
<h3>
Answer:</h3>
12,281.6 Joules
<h3>
Explanation:</h3>
- The amount of heat energy is calculated by multiplying the mass of a substance by its specific heat capacity and then by the change in temperature.
In our case;
Mass of water vapor, m = 190.0 g
Change in temperature, Δt = 150°C - 118°C = 32°C
Taking the specific heat capacity of water vapor = 2.02 J/g°C
Therefore;
Amount of heat = 190.0 g × 2.02 J/g°C × 32°C
= 12,281.6 Joules
Hence, the amount of heat needed is 12,281.6 Joules
