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3 years ago

True or false: ur hearts a muscle

Chemistry

1 answer:

Alex Ar [27]3 years ago

7 0

Answer: True

Explanation:

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In which of the following reactions will Kc= Kp?A) 4 NH3(g) + 3 O2(g) ⇌2 N2(g) + 6 H2O(g)B) 2 SO3(g) + 2 NO(g) ⇌2 SO2(g) + 2 NO2

inessss [21]

Answer: $2SO_3(g)+2NO(g)\rightleftharpoons 2SO_2(g)+2NO_2(g)$

Explanation:

Relation of $K_p$ with $K_c$ is given by the formula:

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

where,

$K_p$ = equilibrium constant in terms of partial pressure

$K_c$ = equilibrium constant in terms of concentration

R = Gas constant

T = temperature

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

$K_p=K_c$ when $\Delta n_g$ = 0

a) $4NH_3(g)+3O_2(g)\rightleftharpoons 2N_2(g)+6H_2O(g)$

$\Delta n_g$ = change in number of moles of gas particles = $8-7=1$

b) $2SO_3(g)+2NO(g)\rightleftharpoons 2SO_2(g)+2NO_2(g)$

$\Delta n_g$ = change in number of moles of gas particles = $4-4=0$

c) $4N_2(g)+2O_2(g)\rightleftharpoons 4N_2O(g)$

$\Delta n_g$ = change in number of moles of gas particles = $4-6=-2$

d) $6SO_2(g)+3O_2(g)\rightleftharpoons 6SO_3(g)$

$\Delta n_g$ = change in number of moles of gas particles = $6-9=-3$

Thus for reaction , $2SO_3(g)+2NO(g)\rightleftharpoons 2SO_2(g)+2NO_2(g)$ , $K_p=K_c$ as $\Delta n_g$ = 0

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3 years ago

A child is on a pogo stick. At the top of her jump, her kinetic energy (KE) = 0 J, her gravitational potential energy (GPE) = 10

krek1111 [17]

There would be 0 Potential energy, which eliminates A. There would be Spring energy, which eliminates C. So B and D are your 2 choices. Since the child is not moving just before the jump, there would be 0 Kinetic energy. So D.

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3 years ago

How have water & wind shaped Earth's Surface?

sleet_krkn [62]

Answer:

pangea

Explanation:

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3 years ago

75 POINTS AND BRAINLIEST TO WHOEVER ANSWERS FIRST define gravity and provide three examples of gravity in action. What is Newton

rosijanka [135]

Explanation:

the force of attraction towards the centre

of earth or planet is gravity.

for example

rock in land
flow of river downwards
revolution of earth towards the sun

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3 years ago

Treatment of (S)-( )-5-methyl-2-cyclohexenone with lithium dimethylcuprate gives, after protonolysis, a good yield of a mixture

tekilochka [14]

Answer:

use google and use the first link

Explanation:

6 0

3 years ago

True or false: ur hearts a muscle​

True or false: ur hearts a muscle