Answer:
The volume increases,
Final volume is 2.1L
Explanation:
Based on Boyle's law, the absolute temperature of a gas is directly proportional to the volume of the gas.
As the balloon change increases its temperature, the volume increases
The Boyle's equation is:
V1T2 = V2T1
<em>Where V is volume and T is absolute temperature of 1, initial state and 2, final state of the gas.</em>
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Replacing:
V1 = 2.0L
T2 = 35°C + 273.15 = 308.15K
V2 = ?
T1 = 25°C + 273.15 = 298.15K
2.0L*308.15K = V2*298.15K
2.1L = V2
<h3>Final volume is 2.1L</h3>
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Answer:
Calcite
Explanation:
When in contact with hydrochloric acid, calcite releases carbon dioxide gas.
Answer:
q = -6464.9 kJ
Explanation:
We are given that the heat of combustion is ∆H° = −394 kJ per mol of carbon.Therefore what we need to do is calculate how many moles of C are in the lump of coal by finding its mass since the density is given.
vol = 5.6 cm x 5.1 cm x 4.6 cm = 131.38 cm³
m = d x v = 1.5 g/cm³ x 131.38 cm³ = 197.06 g
mol C = m/MW = 197.06 g/ 12.01g/mol = 16.41 mol
q = −394 kJ /mol C x 16.41 mol C = -6464.9 kJ
