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algol13
3 years ago
8

An increase in temperature the kinetic energy and average speed of the gas particles. As a result, the pressure on the walls of

the container . Answer Bank What temperature must a gas, initially at 10 ∘C, be brought to for the pressure to triple?
Physics
1 answer:
Cerrena [4.2K]3 years ago
8 0

Answer:

a

The pressure will increase

b

T_2 =  576^oC

Explanation:

From the ideal gas law we have that

     PV  =  nRT

We see that the temperature varies directly with the pressure so if there is an increase in temperature that pressure will increase

   The initial  temperature is T_i  =  10^oC = 10 + 273 =  283 \  K

The objective of this solution is to obtain the temperature of the gas where the pressure is tripled

Now from the above equation given that nR and V  are constant  we have that

    \frac{P}{T}  =  constant

=>  \frac{P_1}{T_1}  =\frac{P_2}{T_2}

Let assume the initial  pressure is P_1 =  1 Pa

So tripling it will result  to the pressure being P_2 =  3 Pa

So

     \frac{1}{283}  =\frac{3}{T_2}  

=>   T_2  =  3 *  283

=>    T_2  =  3 *  283

=>    T_2  = 849 \ K

Converting back to ^oC

   T_2  =  849 -  273

=>  T_2 =  576^oC

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9) What will happen to the period of a pendulum if we change the rope of a pendulum with another which is four times with the in
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2 years ago
In an elastic head-on collision, a 0.60 kg cart moving at 5.0 m/s [W] collides with a 0.80 kg cart moving at 2.0 m/s [E]. The co
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Answer:

The answer is given below

Explanation:

u is the initial velocity, v is the final velocity. Given that:

m_1=0.6kg,u_1=-5m/s(moving \ west),m_2=0.8kg,u_2=2m/s,k=1200N/m

a)

The final velocity of cart 1 after collision is given as:

v_1=(\frac{m_1-m_2}{m_1+m_2})u_1+\frac{2m_2}{m_1+m_2}u_2\\  Substituting:\\v_1=\frac{0.6-0.8}{0.6+0.8} (-5)+\frac{2*0.8}{0.6+0.8}(2)= 5/7+16/7=3\ m/s

The final velocity of cart 2 after collision is given as:

v_2=(\frac{m_2-m_1}{m_1+m_2})u_2+\frac{2m_1}{m_1+m_2}u_1\\  Substituting:\\v_1=\frac{0.8-0.6}{0.6+0.8} (2)+\frac{2*0.6}{0.6+0.8}(-5)= 2/7-30/7=-4\ m/s

b) Using the law of conservation of energy:

\frac{1}{2}m_1u_1+ \frac{1}{2}m_2u_2=\frac{1}{2}m_1v_1+\frac{1}{2}m_2v_2+\frac{1}{2}kx^2\\x=\sqrt{\frac{m_1u_1+m_2u_2-m_1v_1-m_2v_2}{k}}\\ Substituting\ gives:\\x=\sqrt{\frac{0.6*(-5)^2+0.8*2^2-(0.6*3^2)-(0.8*(-4)^2)}{1200}}=\sqrt{0}=0\ cm

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A circuit with resistive elements of 220, 100, 57, and 43 produce what total resistance?
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The total resistance is 420 ohm.

A circuit with resistive elements of 220, 100, 57, and 43 produce what total resistance  

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What is resistance and its types?

Resistance is a measure of the opposition to current flow in an electrical circuit also known as ohmic resistance or electrical resistance. Ohms are measured as resistance, symbolized by the Greek letter omega (Ω). The ratio of the applied voltage to the current through the material is then known as resistance.

What causes resistance?

An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance.

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