The values associated with the term, standard state, in a thermochemical system
a. temperature: 273. k; pressure: 1.000 bar
b. temperature: 298. k; pressure: 1.000 bar
c. temperature: 0.00 °c; pressure: 1.000 standard atmosphere
d. temperature: 298. k; pressure: 1.000 pascal
e. temperature: 0.00 k; pressure: 1.000 standard atmosphere

The values associated with the term, standard state, in a thermochemical system are option c

Explanation:

Temperature: 0.00 °C; pressure: 1.000 standard atmosphere

Otherwise you can write 0°C as 273 K

1 atm as 1.01325 bar, or 1013 mbars

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form() .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

answer seismograph;