Answer:
Granite
Explanation:
The specific heat capacity of a substance, which is denoted by "c", is the amount of heat required to raise the temperature of a particular mass of that substance by 1°C. It is calculated as follows:
c = Q ÷ m∆T
Where;
c = specific heat capacity
Q = amount of heat (J)
m = mass of substance
∆T = change in temperature.
According to this equation and explanation above, a low specific heat capacity means that the rate at which the temperature is raised is slow and vice versa. Hence, from this question, GRANITE with specific capacity of 0.790 J/gK will raise temperature the slowest.
Answer:
DONT PRESS THAT THAT IS HACK AND VIRUS
Explanation:
Answer: There are 105 grams of acetylene in the tank.
Explanation:
According to ideal gas equation:
P = pressure of gas = 1.39 atm
V = volume of gas = 70.0 L
n = number of moles = ?
R = gas constant =
T = temperature of gas in Kelvin =
Mass of ethylene , M = Moles × Molar mass = 4.04 mole × 26 g/mol =105g
Thus there are 105 grams of acetylene in the tank.
Answer:
The order of increasing speed is: Cl₂ < CO₂ < Ar < N₂ < H₂.
Explanation:
- Thomas Graham found that, at a constant temperature and pressure the rates of effusion of various gases are inversely proportional to the square root of their masses.
<em>∨ ∝ 1/√M.</em>
where, ∨ is the rate of diffusion of the gas.
M is the molar mass of the gas.
Molar mass of N₂ = 28.0 g/mol.
Molar mass of H₂ = 2.0 g/mol.
Molar mass of Cl₂ = 70.9 g/mol.
Molar mass of CO₂ = 44.0 g/mol.
Molar mass of Ar = 39.94 g/mol.
∵ Molar mass of Cl₂ > Molar mass of CO₂ > Molar mass of Ar > Molar mass of N₂ > Molar mass of H₂.
<em>Remember that ∨ ∝ 1/√M.</em>
∴ The speed of H₂ > N₂ > Ar > CO₂ > Cl₂.
<em>So, the order of increasing speed is: Cl₂ < CO₂ < Ar < N₂ < H₂.</em>