Ask question

Ask question

All categories

3 years ago

10

Which object will have the most kinetic energy?

1 answer:

professor190 [17]3 years ago

4 0

Answer:

Semi-track

Explanation:

It has more mass so,more KE.

You might be interested in

If you take a 15.0-mL portion of the stock solution and dilute it to a total volume of 0.600 L , what will be the concentration

alexira [117]

$15 \div .6$

6 0

3 years ago

Which discovery is considered to have led to the greatest advancements in the field of medicine?

Darya [45]

I think it would be penicillin as it saved many lives in its time and ours.

4 0

3 years ago

Be sure to answer all parts.The equilibrium constant, Kc, for the formation of nitrosyl chloride from nitric oxide and chlorine,

djverab [1.8K]

<u>Answer:</u> The reaction proceeds in the forward direction

<u>Explanation:</u>

For the given chemical equation:

$2NO(g)+Cl_2(g)\rightleftharpoons 2NOCl(g)$

Relation of $K_p\text{ with }K_c$ is given by the formula:

$K_p=K_c(RT)^{\Delta n_g}$

where,

$K_p$ = equilibrium constant in terms of partial pressure = ?

$K_c$ = equilibrium constant in terms of concentration = $6.5\times 10^4$

R = Gas constant = $0.0821\text{ L atm }mol^{-1}K^{-1}$

T = temperature = $35^oC=[35+273]K=308K$

$\Delta n_g$ = change in number of moles of gas particles = $n_{products}-n_{reactants}=2-3=-1$

Putting values in above equation, we get:

$K_p=6.5\times 10^4\times (0.0821\times 500)^{-1}\\\\K_p=1583.43$

$K_p$ is the constant of a certain reaction at equilibrium while $Q_p$ is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

The expression of $Q_p$ for above equation follows:

$Q_p=\frac{(p_{NOCl})^2}{p_{Cl_2}\times (p_{NO})^2}$

We are given:

$p_{NOCl}=1.76atm$

$p_{NO}=1.01atm$

$p_{Cl_2}=0.42atm$

Putting values in above equation, we get:

$Q_p=\frac{(1.76)^2}{0.42\times (1.01)^2}=7.23$

We are given:

$K_p=1583.43$

There are 3 conditions:

When $K_{p}>Q_p$ ; the reaction is product favored.
When $K_{p}$ ; the reaction is reactant favored.
When $K_{p}=Q_p$ ; the reaction is in equilibrium

As, $K_p>Q_p$ , the reaction will be favoring product side.

Hence, the reaction proceeds in the forward direction

4 0

3 years ago

When the mixture was moved from room temperature to a higher temperature, the mixture turned darker brown. Which of the followin

Wittaler [7]

Answer:

The equilibrium between the two forms of the gas is disturbed at high temperatures.

7 0

3 years ago

Balance this equation: CH4 +2O2--------> ___ CO2 + ___ H2O

Lubov Fominskaja [6]

Answer:

b-1 CO2+ 2H2O

5 0

3 years ago