Answer:
648.5 mL
Explanation:
Here we will assume that the pressure of the gas is constant, since it is not given or specified.
Therefore, we can use Charle's law, which states that:
"For an ideal gas kept at constant pressure, the volume of the gas is proportional to its absolute temperature"
Mathematically:
where
V is the volume of the gas
T is its absolute temperature
The equation can be rewritten as
where in this problem we have:
is the initial volume of the gas
is the initial temperature
is the final temperature
Solving for V2, we find the final volume of the gas:
Answer:
The final temperature of the system is 42.46°C.
Explanation:
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
where,
c = specific heat of water= 
= mass of water sample with 100 °C= 50.0 g
= mass of water sample with 13.7 °C= 100.0 g
= final temperature of system
= initial temperature of 50 g of water sample= 
= initial temperature of 100 g of water =
Now put all the given values in the given formula, we get
The final temperature of the system is 42.46°C.
Answer: Burning wood, souring milk, browning of a cut apple
C) 5 protons, 5 electrons, and 6 neutrons
Answer:
52.79 dm3 of SO2 will be produced when 975kJ/mol of heat are liberated.
Explanation:
In the reaction given;
2PbS(s) + 3O2(g) 2PbO(s) + 2SO2(g) H = -827.4 kJ/mol
-827.4 kJ/mol of heat liberates 2 moles of SO2 in the reaction involving lead and oxygen
At STP, -827.4 kJ/mol of heat liberate 22.4 * 2 dm3 of SO2
So therefore, 975 kJ/mol of heat will liberate
= 975 * 22.4 * 2 / -827.4
= 43 680 / -827.4
= 52.79 dm3 of SO2.
52.79 dm3 of SO2 will be produced at STP if 975 kJ/mol of heat are liberated.
