Which of the following is true for the equilibrium constant of a reaction? its value remains constant at different temperatures. it is a ratio of coefficients of reactants to products. it is represented by the symbol k. its value is always less than 1.

It is represented by the symbol K.

Explanation:

1. Its value remains constant at different temperatures:

It is wrong because it depends on the T and varies by varying the T.

2. It is a ratio of coefficients of reactants to products:

It is wrong because It is a ratio of coefficients of products to reactants.

3. It is represented by the symbol K:

It is right, since it is represented by the symbol K.

4. Its value is always less than 1:

It is wrong, because it may be equal, less or more than 1 depends on the reaction components.

it is represented by the symbol k

Explanation:

Just took the test

the answer is definitely c.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.