Answer:
400 cm³
Explanation:
Let p₁ Pa be the original pressure of the gas
p₂ Pa be the new pressure of the gas
V₁ m³ be the original volume of the gas
V₂ m³ be the new volume of the gas
According to Boyle's Law,
p₁V₁ = p₂V₂
p₁ × 0.0002 = 1/2 p₁ × V₂
0.0002 = 1/2 × V₂
V₂ = 0.0004
∴ The new volume of the gas = 0.0004 m³ = 400 cm³
Answer:
The current of the toaster is 3.93A
Explanation:
Using the GRASS method:
G: Given: The information that is given is that we have 28Ω of Resistance and 110V of voltage.
R: Required: We need to find the current measured.
A: Action: We can use Ohm's law that relates resistance, voltage and current in the equation:
V = R*I
Or:
I = V/R
<em>Where I is current in A, V is voltage = 110V and R is resistance = 28Ω</em>
S: Solve:
I = 110V / 28Ω
I = 3.93A
S: Statement:
<h3>The current of the toaster is 3.93A</h3>
Answer:
Dalton law states that the partial pressure of a gas in a mixture of gases is equal to the total pressure of the mixture.
To determine the heat required to raise a body's termperature by a certain number of degrees C, we use the equation,
H = mcpdT
where m is mass, cp is specific heat, and dT is the temperature difference. Substituting the known values,
H = (30.0 g)(0.90 J/gC)(75 - 25)
H = 1350 J
Thus, there is a need for 1350 J of heat for the process.